Wmicro Automatic Auto Led Dancing Christmas xmas Party Lights (Shipped From U.S.) It is a small and exquisite roundness rotating LED crystal magic ball. Strobe effects, red, green and blue three colors change Control rotation speed, colors and strobe through automatic control. 73 strong beams light, when its light spot on the wall, the effect likes glass ball, very bright and powerful. With four screw holes, the ball can be fixed on your speaker